Multiple-signal transmitter



[No Model.)

B. J. NOYES. MULTIPLE SIGNAL TRANSMITTER.

No. 451,512. Patented May 5,1891.

9 a w z D mi a w W a y u V W N d m i 1 I l hu fl I a I l I n i .25:

jerrzzloe J UNITED STATES PATENT OFFICE.

BERNICE J. NOYES, OF BOSTON, MASSACHUSETTS.

MULTIPLE-SIGNAL TRANSMITTER.

SPECIFICATIONforming part of Letters Patent No. 451,512, dated May 5, 1891.

Application filed September 22,1890. Serial No. 365,707. (No model.)

To 01.65 111700772, it may concern:

Be it known that I, BERNICE J. NOYES, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvementin Muliiple-Signal Transmitters, of which the following description,in connection with the accompan'ying drawings, is a specification, like letters and figures on the drawings representing like parts.

Multiple-signal transmitters have heretofore been made which comprised a train, an operating-lever therefor, and a removable signal-wheel, and such a signal-transmitter is operated by placing the signal-wheel on its operating-shaft in correct position and thereafter moving the operating lever or pull to wind up or to start the train. Considerable time is required to accomplish these several movements, and it is the objectof thisinvention to so construct a multiple-signal transmitter of this class thatit will be self-starting, to thereby save a portion of the time which is now consumed in operating it.

While many ways may be devised for carrying out my inventionin detail, I have herein shown the train as normally wound up and have provided a suitable let-01f, and have so constructed other parts that as the signalwheel is placed in position on its shaft the said let-off will be moved and the train released.

Figure 1 shows in front elevation a multiple-signal transmitter embodying this invention; Fig. 2, a detail of one of the signalwheels to be referred to; Fig. 3, a horizontal section of the removable signal-wheel, showing how it fits on the shaft; and Fig. 4, a similar view to Fig. 2, showing the signal-wheel on the end of the shaft, but not pushed for ward to move the let-off.

The train herein shown and to which my invention is applied comprises a toothed wheel a, arranged on a winding-shaft a and in mesh with a pinion a (see dotted lines,) secured to a shaft of, to which shaft is secured a toothed wheel a, engaging a pinion a, (see dotted lines,) secured to a shaft 0., to which a toothed wheel o is secured, which engages a pinion a secured to a shaft a", car-v rying the escape-wheel a, adapted to co-opon or secured to it a tapering hub erate with-any suitable pallet. A signalingkey is provided, consisting of a stationary contact-pen 2 and a movable contact-pen 3, the latter occupying a suitable position to cooperate with a signal-wheel b, which is herein shown as secured to a shank b, to which a knob 17 is secured and by which it may be removed at will. This signal-wheel Z) has formed 11 (See Fig. 2.)

The signal-wheel is removable at will from its shaft a, in order that another wheel, having a different predetermined signal thereon, may be substituted. A let-off is provided for the train, consisting, as herein shown, of a bell-crank lever pivoted at c to the framework, one arm, as c', of which has on it a pin 0 which engages a pin 0 on the wheel a", and the other arm, as 0 of which normally bears against a pin 0 on the frame. The arm 0 is of suitable length to lie in the path of movement of the tapering hub b when in its normal position against the pin 0 so as to be moved by said hub when the signal-wheel is placed on the shaft a. As the let-off c c is moved by the tapering hub 11 this pin 0 releases the pin 0 and thereby the train. The signal-wheel b will be revolved by means of the shaft a until the pin 0 on the wheel a arranged in a diiferent distance from the axis of rotation of said wheel, engages and strikes the pin 0 on he arm a, which at this time will be in the dotted-line position shown. The

train will thus be stopped, and the signalwheel being removed the let-off will resume its normal full-line position shown, and the train will again start and run until the pin 0 engages the pin 0 when the train is again stopped. Thus it will be seen that simplyby the act of placing the signal-wheel on its shaft in position to operate the train is started and the signal will be transmitted,thereby saving the time of the attendant in operating the lever. Although this time saved is small, yet in a device of this kindwl1en employed, for instance, as a wagon-call transmitter for police-signal systems-one or more seconds is of vital importance.

I do not desire to limit myinvention to the specific construction shown for carrying out the desired results in detail, as it is obvious that it maybe changed and yet come within the scope of my invention.

I claim 1. I11 a multiple-signal transmitter, a train and a let-off, combined with a removable nal-wheel and means controlled by the signalwheel for moving the let-off, substantially as described.

2. In a multiple-signal transmitter, a train and a let-01f, combined with a signal-wheel and a hub moved by it for effecting movement of the let-oit, substantially as described.

3. I11 a multiple-signal transmitter, a train and a circuit-changing device, a eo-operating part of which is removable, combined with a let-ofl for said train, movement of which is eifeeted by said co-operating part of the circuitchanging device, substantially as described.

4. In a multiple-signal transmitter, a non mally-wound-up train, one of the wheels of which has on it two pins 0 c, and a circuitchanging device, a co-operatin g part of which is removable, combined with a let-off adapted to engage the pins 0 c", as described, and means controlled by said removable eo-operating part of the circuit-changing device for eifecting movement of said let-oft, substantially as described.

5. In a multiple-signal transmitter, a normally-wound-up train and a let-cit therefor, combined with a removable signal-Wheel and a tapering hub for moving said let-off, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BERNICE J. NOYES.

Witnesses:

GEO. W. GREooRY, EDWARD F. ALLEN. 

